Broad-spectrum soil heavy metal passivation microbial inoculum as well as preparation method and application thereof
A heavy metal, broad-spectrum technology, applied in the direction of biochemical equipment and methods, chemical instruments and methods, applications, etc., can solve the problems of limited repair of heavy metals, reduce the toxicity of broad-spectrum heavy metals, and indirect passivation, so as to avoid Food safety issues, broad-spectrum heavy metal passivation effect, low price effect
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Embodiment 1
[0090] Embodiment 1 a kind of broad-spectrum soil heavy metal passivation bacterial agent
[0091] In the present embodiment, the preparation method of broad-spectrum soil heavy metal passivation bacterial agent is:
[0092] (1) Activation strain: inoculate the above-mentioned Geobacter sulfurreducens HMP-1 into the above-mentioned NBAF liquid medium for activation.
[0093] (2) Bacterial liquid preparation: Inoculate the activated Geobacter sulfurreducens HMP-1 bacterial liquid into new NBAF liquid medium at an inoculation amount of 3% (v / v), and ferment anaerobically at 30°C for 7 days;
[0094] (3) Preparation of solid bacterial agent: the fermented bacterial liquid is vacuum-dried at low temperature to obtain Geobacter sulfurreducens HMP-1 bacterial powder, and then the ratio of the mass meter 1:35 is fully mixed with the Geobacter sulfurreducens HMP-1 bacterial powder and auxiliary materials (guarantee The number of live bacteria in the final product complies with the st...
Embodiment 2
[0099] Embodiment 2 A kind of broad-spectrum soil heavy metal passivation bacterial agent
[0100] In the present embodiment, the preparation method of broad-spectrum soil heavy metal passivation bacterial agent is:
[0101] (1) Activation strain: inoculate the above-mentioned Geobacter sulfurreducens HMP-1 into the above-mentioned NBAF liquid medium for activation.
[0102] (2) Bacterial liquid preparation: Inoculate the activated Geobacter sulfurreducens HMP-1 bacterial liquid into new NBAF liquid medium at an inoculation amount of 3% (v / v), and ferment anaerobically at 30°C for 7 days;
[0103] (3) Preparation of solid bacterial agent: the fermented bacterial liquid is vacuum-dried at low temperature to obtain Geobacter sulfurreducens HMP-1 bacterial powder, and then the ratio of the mass meter 1:40 is fully mixed with the Geobacter sulfurreducens HMP-1 bacterial powder and auxiliary materials (guarantee The number of live bacteria in the final product complies with the st...
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